Area Code 724

About Area Code 724

Area code 724 is a geographic telephone area code assigned to New Castle, Pennsylvania. It operates in the Eastern time zone and was first introduced in 1998. Split from 412. Western Pennsylvania outside Pittsburgh. Overlay 878 (2001).

Within Pennsylvania, area code 724 shares numbering capacity with 12 other area codes. The state's 12,964,056-person population (2023 Census Bureau estimate) is served by a combined 13 active codes, with 724 primarily responsible for the New Castle region. Pennsylvania's state capital is Harrisburg, and its largest city is Philadelphia.

When you receive a call from a 724 number on your Caller ID, the call originated from a phone number assigned to the 724 area code — but be aware that Local Number Portability (in effect since 2003) means the caller could be physically located anywhere in the US or Canada. Area code 724 only confirms where the number was originally assigned.

Where is the 724 area code located?

Area code 724 is assigned to New Castle, Pennsylvania, in the Eastern time zone. The state of Pennsylvania uses 13 active area codes, and 724 is one of them. Calls placed from the 724 area code originate from numbers assigned by NANPA — the North American Numbering Plan Administrator — and the 724 prefix appears on Caller ID for both landline and wireless calls placed from this region.

The Eastern time zone observes Daylight Saving Time, shifting from UTC-5 to UTC-4 in summer. The local time shown above is always current, so you can quickly check whether it's a reasonable hour to call back.

What cities and counties use the 724 area code?

The 724 area code serves 12 notable cities, listed below in order of population. The largest city in the 724 territory is Philadelphia (1,567,442 residents in Philadelphia County).

• Philadelphia, PA — 1,567,442 residents (60.8% of 724 numbers)
• Pittsburgh, PA — 302,971 residents (11.8% of 724 numbers)
• Allentown, PA — 125,845 residents (4.9% of 724 numbers)
• Erie, PA — 93,928 residents (3.6% of 724 numbers)
• Reading, PA — 95,112 residents (3.7% of 724 numbers)
• Scranton, PA — 75,799 residents (2.9% of 724 numbers)
• Bethlehem, PA — 76,568 residents (3% of 724 numbers)
• Lancaster, PA — 58,039 residents (2.3% of 724 numbers)
• Harrisburg, PA — 50,118 residents (1.9% of 724 numbers)
• York, PA — 44,800 residents (1.7% of 724 numbers)

Phone number format in area code 724

All phone numbers within area code 724 follow the standard North American 10-digit format:(724) NXX-XXXX. The NXX is the central office prefix (also called an "exchange") and XXXX is the subscriber line number. For long-distance calls within the NANP, dial 1 + 724 + NXX + XXXX. From outside North America, dial your country's international access code, then 1 (the NANP country code), then the 10-digit number.

If you need to verify whether a specific 724 number is wireless, landline, or VoIP, you can use our reverse phone lookup tool. Be aware that number portability means the area code no longer guarantees the caller's physical location — only where the number was first assigned.

History of area code 724

Split from 412. Western Pennsylvania outside Pittsburgh. Overlay 878 (2001).

The original 86 area codes were assigned by AT&T and Bell Labs in 1947 as part of the North American Numbering Plan. At the time, rotary-dial phones meant codes with lower digits (like 212 for NYC, 213 for LA, 312 for Chicago) were given to the largest cities because they took less time to dial. Today's area code assignments still reflect those early choices, even though touch-tone and cell phones made the original reason obsolete.

Is the 724 area code safe to answer?

Area code 724 itself is a normal geographic code with no elevated spam risk. That said, scammers can spoof any area code — including 724 — so if you don't recognize the full number, let it go to voicemail and verify the caller's identity before calling back.